A background process from the McAfee Security Suite, this application starts with Windows and runs antivirus and antimalware scans based on a schedule you approve. You can add or remove scheduled tasks or scans to be performed by clicking the McAfee shield icon in the system tray. Based in Santa Clara, California, McAfee was founded in 1987. McAfee is best known for its McAfee Total Security protection suite and its various components. Acquired by Intel Corporation, McAfee will soon be distributed as Intel Security.
If you want a detailed security rating about your McTskshd.exe (and all other running background processes) read the following user opinions, and download the free trial version of Security Task Manager.

Note: Any malware can be named anything - so you should check where the files of the running processes are located on your disk.
If a "non-Microsoft" .exe file is located in the C:\Windows or C:\Windows\System32 folder, then there is a high risk for a virus, spyware, trojan or worm infection!
Check it out!